Notebook: Cockroach DNA, Big 12 Defenses, The Waterfall

ARLINGTON, Texas — Big 12 Media Days provide an unofficial starting point to the college football season, and here we are.

Les Miles, Gary Patterson, Mike Gundy, Matt Wells and Lincoln Riley all took the podium Monday at AT&T Stadium with 0-0 records. We’ll have coverage from the event for the next few weeks, awaiting on Oklahoma State to start fall practice, but here are a handful of quick hits from Monday.

Cockroach DNA

Four new coaches enter the Big 12 this season in Matt Wells (Texas Tech), Neal Brown (West Virginia), Chris Klieman (Kansas State) and Les Miles (Kansas).

It brings in a bit of a new era of Big 12 football. The conference still has some staples in Mike Gundy, who starts his…